<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>

    <script>

        setTimeout(() => {
            console.log(666);
        }, 1000)

     


        const p = new Promise((resolve, reject) => {
            setTimeout(() => {
                const n = parseInt(Math.random() * 100);
                if (n % 2 === 0) {
                    resolve(n)
                } else {
                    reject(n)
                }
            }, 1000)

        })

        p
            .then(
                data => {
                    console.log(data);
                }
            )
            .catch(
                err => {
                    console.log(err);
                }
            )

    </script>

</body>

</html>